I don't know exactly what you guys can do about it, but blocking regions seems a bit blunt and rude. The IP address I'm sending from is a pretty legitimate block of address owned by WIDE.

The reason I suspect that it is an Asian thing is that the usual response from the various "postmasters" is, "oh, it's because the email is from an Asian address."

Is there any way to get my IP address added to some white-list so this doesn't happen or will the physical proximity of my mail server always cause my IP address to be painted with the spam brush?

Although I suppose that's how it feels when blog comments get stuck in my spam queue. The only difference is that I look at those regularly and let them through. These spam rejection notices are basically 86 at the door deals.

The ironic thing is bouncing emails like that will not stop spammers at all--who would spam using their real email address as the reply-to? Someone has been spoofing my email address and spamming lately so I am getting tons of these bounce messages in my inbox. It's quite frustrating.

It is less common these days - at least among the larger networks - to block email just because its from Asia.

Several asian ISPs (big brand names, at that) are a few generations behind when it comes to spam filtering though - and few of them if any focus on outbound spam filtering beyond "oh, we do port 25 blocking, that should be enough", if at all they do something.

And you have several countries in asia that have broadband rolled out all over the place, even to random small villages - and a pirated copy of XP is cheaper than a coffee at starbucks. That makes for a lethal combination - huge infestation of viruses, consequent spam, DDoS etc etc.

Add dumb local marketers to that (who havent caught on that grabbing random addresses and emailing them is not a good idea), and a few other things .. it makes sure that a lot of Asian ISPs have a problem.

But the problem is ISP specific, caused by poor policy enforcement, would be the same for that ISP whether they were in asia, europe or wherever.

Spam blacklists usually deny mail by the sender's IP address, usually individual addresses, but sometimes when significant amounts of spam come from a range of IPs at one ISP, and the ISP does nothing to prevent spam, a whole range of IPs will be added to the blacklist. Innocent IPs are sometimes blocked when a range of spammer's IPs are blacklisted. Most blacklists don't ban whole countries, this would be a significant impediment to their usefulness.

Try applying some pressure to your ISP, insist that they take stronger measures to remove spammers who are using their IPs and that they are taking precautions to kill botnets within their IP range.

JPNIC DB says 202.221.145.35 is a part of a fixed-assigned address from a commercial provider (not an academic network, Joi), and the 2iij.net PTR RR result looks like a dynamic IP indeed (whichever it is or not).

to me, this is yet another world wide segregation started happening that caused by sys admins who are lesser educated on world history, humanity and civil rights issues. it is reflecting their views to other countries and other races, I suppose.

when I started exchanging a lot of emails with my friends in Korea last year, I found strange drop off of replies from them. I checked my ISP's email chains and spam boxes and found out one of ISP had set blocking all Korean and Chinese origin emails at the default. the ISP was a Japanese one.

You're missing the point, Bjorn: It's the ratio of useful e-mail to spam that's important in considering whether to block IP ranges. For many in the U.S. there is little downside and a lot of gain in blocking Asian IPs. There may be even greater gain in blocking U.S. IPs, but a massive downside, in that 99.9% of the mail they want to see disappears.